Chemistry radioactive dating

Posted by / 07-Jul-2017 23:02

Both are complete atoms in every sense of the word.Geologists regularly use five parent isotopes to date rocks: uranium-238, uranium-235, potassium-40, rubidium-87, and samarium-147.Each atom is thought to be made up of three basic parts.The nucleus contains protons (tiny particles each with a single positive electric charge) and neutrons (particles without any electric charge).

The daughter atoms are not lesser in quality than the parent atoms from which they were produced.Specially equipped laboratories can do this with accuracy and precision.So, in general, few people quarrel with the resulting chemical analyses.Some isotopes are radioactive; that is, they are unstable because their nuclei are too large.To achieve stability, the atom must make adjustments, particularly in its nucleus.

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So let’s take a closer look and see how reliable this dating method really is.

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